Flask-clamp.



J. HL JONES.

FLASK CLAMP.

APPLIOATION FILED JUNI: 2o, 190s.

Patented Janf26, 1909.

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americane No.. 911o15,

Specification of lieti-creers;V Batent.

Patenteqran. 2e, 1909.

Application filed. June20, 1 908. Serallo. 439,550.

Pennsylvania,have invented new and'useful Improvements in Flask-Clamps, of: which the,

following is a specification. 1

This invention relates to flask clamps, and

consists in certain improvements in the oonstruction thereofas Will be hereinafter fullyy describedand pointedout in the claims.

The invention is particularly adapted for use with molding machines, especially that type ofmolding machine inwhich the ilask is swung in the molding machine, and the pattern withdrawn by the mechanism ofthe Kidding machine. Under such conditions-,0f

12x-se', it 'ish very desirablel to have, a clampwhich may be@ rap yf'and readilyapplied'- and released,v ancllyvhichfwill? assure proper elamping,and which; when releasedwiltv not interfere?'with the rapid working oi;Y the machine. i The invention` is illustrated in the accompanying drawings as follows:

' i 'gore 1 shows abottom view'ofa pattern platewith the clamp inf place thereon, a fragment oi14 the molding' machine being shown to showthe-.frelation--oli-parts; Fig. 2' a. sidemelevation" the ilask, pattern plate and fragmentsof lthei''rnfolding?'machine' to better shvvmthe relation "of ;'-A 31 an. i

enlarged vieWof-theclamping jaws and' con; necting link; Fig. fifa sectionon' the line 454e in Fig. 1, and Fig.V '57a'seotion' (inthe-line 54:5 iFgl: .Y Y. N`1 marks the ask; 2f the pattern plate, and Sthe bottom board.

The clamp jaw '4 engaging the bottom board is bell crank lever 6, the bell crank lever forme ing the opposing jaw ofthe clamp. The bell crank lever is pivoted on the lug 7 which is detachably securedl to the pattern plate. @ne of these` clampingV mechanisms is arranged at each side of the flask preferably at the opposing corners as shown. Links 8 eX- tend from the bell crank levers 6 and are secured at opposite sides of thepivot bolt of the lever '9En "lhe lever-9 is slotted to permit @tme Pier-Q11 the pirotzbdt 11- Terurf Pose' f' thisftinenomletee S- te @limit off'an ne4 ualization oli-*the clamping e ect at bothsidesof the liask, and to take up any inequalities there maybe.

flask-,iandiaiter th bottomboar-disy e I lset from the.` action. oii the lever, and 'the ilask swung oven-'to the part otthe 13155.

.Thelevertravels` a locking segment-141. This segment is made up ofthe u per guide bar 15' and the ratchet bar 16, andp l? to the frame 4Etooth 18 which is adapted to teeth 1,7 in the ratchet. plate 16.

isarranged over thek lever, anda spring 2G tensionedbetween, the lever and the oli l The.. clip connected bythe link 5 with the.

n will; be readily seen, that each link 8- becomes a i'ulorum for the opposing link, so that under ordinary conditions the pivot bolt 11, simply holds the,

parts vin proper relation.

The pivot boltV 1l is screwed into a bar 12', which is secured to the frame pieces 13 of theV .f molding machine. In ordinary practice, the patternplate-is also secured VtoI the frame pieces i' the molding machine, and with- .the type oi molding machine fragments off which arefshown in the drawings, the frame `is swung so as to turn the flask over, the flask being rammed up in the reverse positionto that shown in Figs! 2A and 3. In this position the lever 9.1;is at the bottom oi the e erammingof the mold, the put in place,L the, clamp is osition. shown @11: reetifieaaith Flgsf. 1 9911i?, th@ iaslet 1s secured pieces 13'. Thelever 9 has the enage the clip i9.,

19-isin engagement: with the gui e plate 15, telescopically connected With. the lever, so that 'the lever is: yieldingly `forced :into engagement with the ratchet teethlV throughv the? ifniiuencef ci the spring 210i v It wilhbe readily seen, that asA the lever-isswung. to put pressure 'on the clamp, it will belo oke'd in said position by themeohani'sm justdesoribed. When it is desired to release the clamp all that is necessary is to lift the lever against the. splring 20, so as to disengage it from 4the teet `17. It may then be swung so as to release the clamps. It will be noted that this single lever o erates a plurality ofV clamps at different sides of the flask.

It is desirable tol have the jaws oi the clamp so arranged that they will not inter iere with the, liftingoi"` the pattern by the machine In, thex present construction this i's accomplished anto-matically whenN the leraar-.9jy is thrown to a` position to release the i clamps'. 'lilf're'rj'aws 4- arepivnted'fat/Zl on the links- 5, andthe Weighted-extensionZl at the opposite side ofv the pivot-21 swings. the jaws upwardlyV to the position shown'in Fig. 3,

as soon as the clamp is4 released. In this position, the jaw cannot engage the bottom so that there 1s no danger of the interference with the action of the molding machine. The jaw is shown in this open position in dotted lines at the left of Fig. 2, where the conditions above described willbe observed.

It is desirable to have the clamp so arranged that it will automatically swing or move out of position to interfere with the ready placing of the flask upon the pattern plate preparatory to forming the mold. The link 5 has its upper end slotted, the slot 23 engaging the pin 24 to form the connection with the bell crank lever 6. 'Ibis permits of a telescopic collapsing of the link to allow it to drop out of the way. To more completely accomplish this purpose I prefer to form the link 5 of pivoted sections. lhese sections are pivotally connected by the ins 24 and 25 as shown 1n the drawings. Vv ien the pattern plate is reversed preparatory to receiving the flask, these pivotal connections permit the then upper part of the link to swing over out of the way. The guides 26 are preferablysecured to the pattern plate to maintain the part of the link nearest to the bell crank lever in position.

What I claim as new is:

1. In a flask clamp, the combination of a plurality of jaws adapted to engage and clamp a plurality of sides of a flask; and mechanism simultaneously operable by one hand of an operator for setting said jaws.

2. In a flask clamp, the combination of a plurality of jaws adapted to engage and clamp a plurality of sides of a flask; and mechanism for setting said jaws, comprising means for equalizing the pressure on said jaws.

3. In a flask clamp, the combination of a plurality of jaws adapted to engage and clamp a plurality of sides of a flask; and mechanism simultaneously operable by one hand of an operator for setting said jaws and for e ualizing the pressure on said jaws.

4. qIn a flask clamp, the combination of a plurality of jaws adapted to engage and clamp a plurality of sides of a flask; and a single device for setting said jaws.

5. In a flask clamp, the combination of a plurality of jaws adapted to engage and clamp a plurality of sides of a flask; and a single lever for setting said jaws.

6. In a flask clamp, the combination of a plurality of jaws adapted to engage and clamp a plurality of sides of a flask; and a lever for setting said jaws, said lever having a floating pivotal connection for permitting the equalization of pressure on the jaws.

7. In a flask clamp, the combination of a jaw; means for setting the clamp with pressure on said jaw; and means for automatically throwing the jaw out of the path of the flask when the clamp is loosened.

8. In a flask clamp, the combination of a pivotally mounted jaw; means for setting the clamp by pressure on the jaw; and means for swinging the jaw out of clamping position when the clamp is released.

9. In a flask clamp, the combination of a pivotally mounted jaw; means for setting the clamp by pressure on the jaw; and a counter weight for swinging the jaw out ol clamping position when the jaw is released.

10. In a flask clamp, the combination of a plurality of jaws adapted to engage and clamp a plurality of sides of a flask; means for setting said clamps by pressure on said jaws; and means for automatically throwing said jaws out of clamping position when the clamp is released.

11. In a flask clamp, the combination ol" a plurality of jaws adapted to engage and clamp a plurality of sides of a flask; mechanism operable by one hand of an operator for setting said clamp vby pressure on said jaws; and means for throwing said jaws out of clamping position when the clamp is released.

12. In a flask clamp, the combination of a top and bottom jaw for engaging a flask; a collapsible link connecting said jaws; and means for setting said jaws.

13. In a flask clamp, the combination of a top and bottom jaw for engaging a flask; a collapsible link made up of pivotally connected sections connecting said jaws; and means for setting said jaws.

14. In a flask clamp, the combination of the top and bottom jaws; a colla )sible link made up of pivotally connecter sections connecting said jaws; a guide for one of the sections of the link; and means for setting the clamp by pressure on said jaws.

15. In a flask clamp, the combination of the bell crank lever forming a jaw for one side of a flask; a jaw at the opposite side of the flask; a collapsible link made up of pivotally connected sections; and means operating upon the bell crank for setting the clamp by pressure on the jaws.

16. In a ask clamp, the combination of' jaws adapted to engage the top and bottom of a flask; and a telescopically collapsible link connecting said jaws.

17. In a flask clamp, the combination ol" a plurality of jaws adapted to engage a alurality of sides of a flask at the top and bottom; collapsible links connecting said jaws; and means for setting said jaws, said means being simultaneously operable by one hand of an operator.

18. In a flask clamp, the combination of the clamp jaws adapted to engage the top and bottom of a flask, said clamps comprising bell crank levers and an operating lever; and linlfs connecting said bell crank levers with said operating lever at different points on the operating lever.

19. In a flask clamp, the combination of the clamp jaws adapted to engage the top and bottom of a flask, said clamp comprising bell crank levers, and an operating lever; and a floating pivotal mounting for the operating lever between the link connections.

20. In a flaskV clamp, the combination of clamp jaws adapted to engage the top and bottom of a flask, said clamps comprising bell crank levers and an operating lever; and means for locking the operating lever.

21. In a lasl clamp, the combination of the clamp jaws adapted to engage the top and bottom of a iiaslnsaid clamps comrising bell crank levers, and an operating ever; a ratchet segment; and devices on the operating lever for engaging the segment.

22. In a ilas'k clamp', the combination of the clamp jaw adapted to engage the top and bottom of a lask, saidclamp comprising bell crank levers and an operating lever; a ratchet segment; a tooth 18 on the lever for engaging the segment; the clamp 19 telescopically mounted on the lever ;the spring 20 between the clip and lever; and a guide plate l5 for holding the clip in position.

lntestimony whereof I have hereunto set my hand in the presence of two subscribing Witnesses.

JACOB H. JONES.

Witnesses:

K. R. KANE, V. C. I-lEss. 

